Zeeman Effect of the Nuclear Quadrupole Resonance of 81Br in para -Bromophenol and 35Cl in para -Chlorophenol
1969; American Institute of Physics; Volume: 50; Issue: 1 Linguagem: Inglês
10.1063/1.1670831
ISSN1520-9032
AutoresP. Bucci, Paolo Cecchi, A. Colligiani,
Tópico(s)Electron Spin Resonance Studies
ResumoThe Zeeman effect of the 81Br and 35Cl nuclear quadrupole resonance has been studied with high precision on single crystals of para-bromophenol and para-chlorophenol, respectively. The results substantially agree with previous x-ray and NQR studies of para-chlorophenol (x-ray studies are known only for this substance). In p-bromophenol, four physically inequivalent sites were found, instead of two, as reported by other authors. Values of the asymmetry parameter are, respectively, ηBr = 0.0534 ± 0.001, ηCl = 0.071 ± 0.001 (34.12 MHz), and ηCl = 0.096 ± 0.001 (34.35 MHz).
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